/Engine/Plugins/Animation/ControlRig/Source/ControlRig/Public/Rigs/RigHierarchy.h
Returns true if a given display name is available.
Returns true if the name is available.
bool IsDisplayNameAvailable ( const [FRigElementKey](API\Plugins\ControlRig\Rigs\FRigElementKey) & InParentElement, const [FString](API\Runtime\Core\Containers\FString) & InPotentialNewDisplayName, [FString](API\Runtime\Core\Containers\FString) * OutErrorMessage ) const